Codex Remote Control push notifications not delivered on iOS

What issue are you seeing?

Description

Codex completion and approval push notifications are not delivered to the ChatGPT iOS app when using Remote Control/App Server.

The Codex session itself works correctly, and events appear as foreground toasts when the Codex tab is open. However, no background push notification is received when a task completes or requires approval.

General push delivery is working on the same device and account: ChatGPT Scheduled Task notifications are successfully delivered by both push and email.

Actual behavior

No iOS push notification is delivered. Opening the Codex tab shows the updated task and foreground toast normally.

Expected behavior

A push notification should be delivered when a Codex task completes or requires approval.

Environment

• iOS: 26.5
• ChatGPT iOS version/build: [version]
• Codex App version: [version]
• Host OS: [macOS version]
• Remote Control/App Server: Enabled

Troubleshooting

• ChatGPT and Codex push notifications are enabled.
• Reinstalled the ChatGPT app.
• Restarted the iPhone.
• Re-paired the Codex host.
• Reproduced with both new and existing threads.
• Confirmed Scheduled Task push and email notifications work normally.

Possibly related:

• https://github.com/openai/codex/issues/20930
• https://github.com/openai/codex/issues/22773
• https://github.com/openai/codex/issues/11820

What steps can reproduce the bug?

1. Connect the ChatGPT iOS app to a Codex host using Remote Control/App Server.
2. Start a Codex task.
3. Put the ChatGPT app in the background and lock the iPhone.
4. Wait for the task to complete or request approval.

What is the expected behavior?

_No response_

Additional information

_No response_